Today's high and low tide times for Chatham, MA, plus a 7-day tide table. Astronomical predictions from the nearest harmonic station — free and updated daily.
In Chatham, MA, the next high tide is at 12:39 AM (1.68 m) and the next low tide is at 6:57 AM (0.41 m), based on harmonic predictions for Chatham Harbor, Aunt Lydias Cove.
All high and low tides for Chatham today, in local time (America/New York). Heights are metres above chart datum.
High (H) and low (L) tide times and heights for the next seven days at Chatham.
| Date | Tides (local time · height) |
|---|---|
| Sun, May 31 | H 12:39 AM 1.68 mL 6:57 AM 0.41 mH 12:51 PM 1.94 mL 7:39 PM 0.30 m |
| Mon, Jun 1 | H 1:18 AM 1.64 mL 7:39 AM 0.44 mH 1:33 PM 1.95 mL 8:21 PM 0.33 m |
| Tue, Jun 2 | H 1:57 AM 1.61 mL 8:15 AM 0.46 mH 2:12 PM 1.94 mL 9:03 PM 0.37 m |
| Wed, Jun 3 | H 2:36 AM 1.59 mL 8:54 AM 0.48 mH 2:51 PM 1.93 mL 9:45 PM 0.40 m |
| Thu, Jun 4 | H 3:15 AM 1.59 mL 9:36 AM 0.49 mH 3:33 PM 1.91 mL 10:27 PM 0.43 m |
| Fri, Jun 5 | H 4:00 AM 1.60 mL 10:21 AM 0.50 mH 4:18 PM 1.88 mL 11:09 PM 0.45 m |
| Sat, Jun 6 | H 4:45 AM 1.62 mL 11:09 AM 0.49 mH 5:06 PM 1.85 mL 11:57 PM 0.46 m |
Predicted from Chatham Harbor, Aunt Lydias Cove, 1 km away (reliability: high — a close match — expect predictions within a few minutes of the published station table).
These are astronomical tide predictions — the rise and fall driven by the moon and sun, computed by harmonic analysis. They do not include weather effects: a strong onshore wind, low barometric pressure or a storm surge can push the real water level above the predicted high, and offshore winds or high pressure can hold it below the predicted low. For navigation or any safety-critical decision, always check the official tide tables and a live water-level gauge for Chatham.
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